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24 Cards in this Set

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Neutrophil
Phagocytosis of bacteria and viruses (blood)
Basophil
Release of histamine, seratonin (blood)
Eosinophil
Control inflammatory reponse (blood)
Macrophage
Phagocytosis, antigen-presentation (tissues)
T-helper cells
Stimulate immune system (lymph, blood)
Cytotoxic T-cells
Kill virus infected cells (lymph, blood)
Antibody
Molecules made by immune system to recognize antigens
Antigen
Molecule presented on a host that stimulates immune response
Epitope
Region of antigen that binds to antibody
Opsonization
Bacteria bind to antibodies to prepare for phagocytosis or complement fixation
Leukocytes
White blood cells
Phagocytosis
Engulfing of foreign particle
Phagosome
Compartment of cell that contains engulfed bacteria
Complement
Group of proteins that bind to opsonized bacteria and kill the bacteria.
Memory cells
T-cells, Tc cells, and B cells remember the bacteria on second exposure
Plasma B cells
Produce antibodies
Lymphoid stem cells
Differentiate into pro-T, pro-B, plasma cells, and memory cells
Myeloid Stem Cells
The 'phils', neutrophil, basophil, and eosinophils, and monocytes that stimulate the immune system
IgG
Precipitation of ags, antitoxins, complement fixation, placental transfer, opsonization
IgA
Secreted by B cells in mucous membranes, secretory antibodies
IgM
Five subunits, first Ab made against Ag, agglutination, opsonization
IgD
function uncertain
IgE
produced when reacting to allergies, binds to basophiles to release histamine
Primary Roles of Antibodies (four)
1. Opsonization of Bacteria
2. Virus Neutralization
3. Toxin neutralization
4. Complement fixaiton